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Related theorems GIF version |
| Description: Hilbert lattice ordering in terms of join. |
| Ref | Expression |
|---|---|
| chlejb2t | ⊢ ((A ∈ Cℋ ∧ B ∈ Cℋ ) → (A ⊆ B ↔ (B ∨ℋ A) = B)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | chlejb1t 5429 |
. 2
⊢ ((A
∈ Cℋ ∧ B /FONT>
∈ Cℋ ) → (A ⊆ B
↔ (A ∨ℋ B) = | |
| 2 | chjcomt 5423 | . . 3 ⊢ ((A ∈ Cℋ ∧ B ∈ Cℋ ) → (A ∨ℋ B) = (B ∨ℋ A)) | |
| 3 | 2 | cleq1d 1109 | . 2 ⊢ ((A ∈ Cℋ ∧ B ∈ Cℋ ) → ((A ∨ℋ B) = B ↔ (B ∨ℋ A) = B)) |
| 4 | 1, 3 | bitrd 406 | 1 ⊢ ((A ∈ Cℋ ∧ B ∈ Cℋ ) → (A ⊆ B ↔ (B ∨ℋ A) = B)) |
| Colors of variables: wff set class |
| Syntax hints: → wi 2 ↔ wb 127 ∧ wa 196 = wceq 1091 ∈ wcel 1092 ⊆ wss 1487 (class class class)co 3001 Cℋ cch 4968 ∨ℋ chj 4972 |
| This theorem is referenced by: atcvat4 5775 mdsymlem5 5780 |
| This theorem was proved from axioms: ax-1 3 ax-2 4 ax-3 5 ax-mp 6 ax-4 673 ax-5 674 ax-6 675 ax-7 676 ax-gen 677 ax-8 798 ax-9 799 ax-10 800 ax-11 801 ax-12 802 ax-13 804 ax-14 805 ax-16 922 ax-17 925 ax-ext 1074 ax-rep 1075 ax-un 1076 ax-pow 1077 ax-reg 1078 ax-inf 1079 ax-ac 1080 ax-hilex 4983 ax-hvaddcl 4984 ax-hvcom 4985 ax-hvass 4986 ax-hvzercl 4987 ax-hvaddid 4988 ax-hvmulcl 4989 ax-hvmulid 4991 ax-hvmulass 4992 ax-hvdistr1 4993 ax-hvdistr2 4994 ax-hvmulzer 4995 ax-hicl 5043 ax-his1 5045 ax-his2 5046 ax-his3 5047 ax-his4 5048 ax-hcompl 5113 |
| This theorem depends on definitions: df-bi 128 df-or 197 df-an 198 df-3or 582 df-3an 583 df-ex 679 df-sb 853 df-eu |